Weakness (CWE)
CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer
The product performs operations on a memory buffer, but it reads from or writes to a memory location outside the buffer's intended boundary.
How to prevent it (7 mitigations)
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Requirements
Use a language that does not allow this weakness to occur or provides constructs that make this weakness easier to avoid.
For example, many languages that perform their own memory management, such as Java and Perl, are not subject to buffer overflows. Other languages, such as Ada and C#, typically provide overflow protection, but the protection can be disabled by the programmer.
Be wary that a language's interface to native code may still be subject to overflows, even if the language itself is theoretically safe.
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Architecture and Design
Use a vetted library or framework that does not allow this weakness to occur or provides constructs that make this weakness easier to avoid.
Examples include the Safe C String Library (SafeStr) by Messier and Viega [REF-57], and the Strsafe.h library from Microsoft [REF-56]. These libraries provide safer versions of overflow-prone string-handling functions.
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Operation, Build and Compilation
Use automatic buffer overflow detection mechanisms that are offered by certain compilers or compiler extensions. Examples include: the Microsoft Visual Studio /GS flag, Fedora/Red Hat FORTIFY_SOURCE GCC flag, StackGuard, and ProPolice, which provide various mechanisms including canary-based detection and range/index checking.
D3-SFCV (Stack Frame Canary Validation) from D3FEND [REF-1334] discusses canary-based detection in detail.
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Implementation
Consider adhering to the following rules when allocating and managing an application's memory:
- Double check that the buffer is as large as specified.
- When using functions that accept a number of bytes to copy, such as strncpy(), be aware that if the destination buffer size is equal to the source buffer size, it may not NULL-terminate the string.
- Check buffer boundaries if accessing the buffer in a loop and make sure there is no danger of writing past the allocated space.
- If necessary, truncate all input strings to a reasonable length before passing them to the copy and concatenation functions.
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Operation, Build and Compilation
Run or compile the software using features or extensions that randomly arrange the positions of a program's executable and libraries in memory. Because this makes the addresses unpredictable, it can prevent an attacker from reliably jumping to exploitable code.
Examples include Address Space Layout Randomization (ASLR) [REF-58] [REF-60] and Position-Independent Executables (PIE) [REF-64]. Imported modules may be similarly realigned if their default memory addresses conflict with other modules, in a process known as "rebasing" (for Windows) and "prelinking" (for Linux) [REF-1332] using randomly generated addresses. ASLR for libraries cannot be used in conjunction with prelink since it would require relocating the libraries at run-time, defeating the whole purpose of prelinking.
For more information on these techniques see D3-SAOR (Segment Address Offset Randomization) from D3FEND [REF-1335].
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Operation
Use a CPU and operating system that offers Data Execution Protection (using hardware NX or XD bits) or the equivalent techniques that simulate this feature in software, such as PaX [REF-60] [REF-61]. These techniques ensure that any instruction executed is exclusively at a memory address that is part of the code segment.
For more information on these techniques see D3-PSEP (Process Segment Execution Prevention) from D3FEND [REF-1336].
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Implementation
Replace unbounded copy functions with analogous functions that support length arguments, such as strcpy with strncpy. Create these if they are not available.
Source: MITRE CWE-119
2,176 results · Clear filters · Feed
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High 7.5
Incorrect boundary conditions in the Audio/Video: Web Codecs component
Incorrect boundary conditions in the Audio/Video: Web Codecs component. This vulnerability was fixed in Firefox 151, Firefox ESR 115.36, Firefox ESR 140.11, Thunderbird 151, and Thunderbird 140.11.
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High 8.8
Microsoft Edge (Chromium-based) Remote Code Execution Vulnerability
Microsoft Edge (Chromium-based) Remote Code Execution Vulnerability
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High 8.8
Edimax BR-6428NS POST Request formPPTPSetup buffer overflow
A vulnerability has been found in Edimax BR-6428NS 1.10. This vulnerability affects the function formPPTPSetup of the file /goform/formPPTPSetup of the component POST Request Handler. Such manipulation of the argument pptpUserName leads to buffer overflow. It…
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High 8.8
Edimax BR-6428NS POST Request formL2TPSetup buffer overflow
A flaw has been found in Edimax BR-6428NS 1.10. This affects the function formL2TPSetup of the file /goform/formL2TPSetup of the component POST Request Handler. This manipulation of the argument L2TPUserName causes buffer overflow. It is possible to initiate …
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High 7.2
H3C Magic B3 aspForm UpdateWanParams buffer overflow
A security vulnerability has been detected in H3C Magic B3 up to 100R002. This affects the function UpdateWanParams of the file /goform/aspForm. Such manipulation of the argument param leads to buffer overflow. The attack may be performed from remote. The exp…
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High 8.8
Improper restriction of operations within the bounds of a memory buffer in the AMD secure processer (ASP) could allow a…
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High 8.8
A heap-based buffer overflow in the ionic cloud driver for VMware ESXi could allow an attacker to achieve privilege esc…
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High 8.8CVE-2026-8389 Public exploit
JIT miscompilation in the JavaScript Engine: JIT component
JIT miscompilation in the JavaScript Engine: JIT component. This vulnerability was fixed in Firefox 150.0.3.
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High 8.8
The issue was addressed with improved memory handling. This issue is fixed in iOS 18.7.9 and iPadOS 18.7.9, iOS 26.5 an…
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High 7.1
The issue was addressed with improved checks. This issue is fixed in iOS 18.7.9 and iPadOS 18.7.9, macOS Sequoia 15.7.7…
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High 7.5
The issue was addressed with improved memory handling. This issue is fixed in Safari 26.5, iOS 18.7.10 and iPadOS 18.7.…
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High 7.5
The issue was addressed with improved memory handling. This issue is fixed in Safari 26.5, iOS 26.5 and iPadOS 26.5, ma…
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High 7.5
The issue was addressed with improved memory handling. This issue is fixed in Safari 26.5, iOS 26.5 and iPadOS 26.5, ma…
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High 7.5
The issue was addressed with improved memory handling. This issue is fixed in Safari 26.5, iOS 26.5 and iPadOS 26.5, ma…
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High 7.5CVE-2026-28990 Public exploit
The issue was addressed with improved memory handling. This issue is fixed in iOS 18.7.10 and iPadOS 18.7.10, iOS 26.5 …
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High 7.5
The issue was addressed with improved memory handling. This issue is fixed in Safari 26.5, iOS 18.7.9 and iPadOS 18.7.9…
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High 7.5
The issue was addressed with improved memory handling. This issue is fixed in Safari 26.5, iOS 18.7.9 and iPadOS 18.7.9…
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High 8.8
The issue was addressed with improved memory handling. This issue is fixed in Safari 26.5, iOS 18.7.9 and iPadOS 18.7.9…
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High 8.8
The issue was addressed with improved memory handling. This issue is fixed in Safari 26.5, iOS 18.7.9 and iPadOS 18.7.9…
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High 7.5
The issue was addressed with improved memory handling. This issue is fixed in macOS Sequoia 15.7.7, macOS Sonoma 14.8.7…
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High 8.8
D-Link DCS-935L HNAP Service hnap_service SetDeviceSettings buffer overflow
A vulnerability was found in D-Link DCS-935L up to 1.10.01. The impacted element is the function SetDeviceSettings of the file /web/cgi-bin/hnap/hnap_service of the component HNAP Service. The manipulation of the argument AdminPassword results in buffer overf…
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High 8.8
EFM ipTIME A8004T WifiBasicSet formWifiBasicSet stack-based overflow
A security vulnerability has been detected in EFM ipTIME A8004T 14.18.2. This vulnerability affects the function formWifiBasicSet of the file /goform/WifiBasicSet. The manipulation of the argument security_5g leads to stack-based buffer overflow. The attack m…
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High 8.8
Tenda CX12L SetPptpServerCfg” formSetPPTPServer stack-based overflow
A vulnerability was found in Tenda CX12L 16.03.53.12. This issue affects the function formSetPPTPServer of the file /goform/SetPptpServerCfg”. The manipulation results in stack-based buffer overflow. The attack can be executed remotely. The exploit has been m…
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High 8.8
Totolink X5000R formDdns sub_458E40 buffer overflow
A vulnerability has been found in Totolink X5000R 9.1.0u.6369_B20230113. This vulnerability affects the function sub_458E40 of the file /boafrm/formDdns. The manipulation of the argument submit-url leads to buffer overflow. Remote exploitation of the attack i…
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High 8.1
Memory safety bugs fixed in Thunderbird 150.0.2
Memory safety bugs present in Thunderbird 150.0.1. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability was fixed in Firefox 150.0.2 an…
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High 7.2
D-Link DI-8100 CGI user_group.asp sprintf buffer overflow
A vulnerability has been found in D-Link DI-8100 16.07.26A1. This vulnerability affects the function sprintf of the file /user_group.asp of the component CGI Handler. The manipulation leads to buffer overflow. The attack may be initiated remotely. The exploit…
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High 7.2
D-Link DI-8100 Web Management url_member.asp buffer overflow
A flaw has been found in D-Link DI-8100 16.07.26A1. This affects an unknown part of the file /url_member.asp of the component Web Management Interface. Executing a manipulation of the argument Name can lead to buffer overflow. The attack can be launched remot…
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High 8.8
D-Link DI-8100 HTTP Request tggl.asp tggl_asp buffer overflow
A vulnerability was detected in D-Link DI-8100 16.07.26A1. Affected by this issue is the function tggl_asp of the file /tggl.asp of the component HTTP Request Handler. Performing a manipulation of the argument Name results in buffer overflow. The attack can b…
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High 7.2
D-Link DI-8100 yyxz.asp sprintf stack-based overflow
A vulnerability was identified in D-Link DI-8100 16.07.26A1. This affects the function sprintf of the file yyxz.asp. The manipulation of the argument ID leads to stack-based buffer overflow. The attack is possible to be carried out remotely. The exploit is pu…
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High 8.8
Totolink N300RH POST Request cstecgi.cgi setMacFilterRules buffer overflow
A vulnerability was detected in Totolink N300RH 3.2.4-B20220812. This vulnerability affects the function setMacFilterRules of the file /cgi-bin/cstecgi.cgi of the component POST Request Handler. The manipulation of the argument mac_address results in buffer o…
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High 8.8
Totolink N300RH POST Request cstecgi.cgi setWanConfig buffer overflow
A security vulnerability has been detected in Totolink N300RH 3.2.4-B20220812. This affects the function setWanConfig of the file /cgi-bin/cstecgi.cgi of the component POST Request Handler. The manipulation of the argument priDns leads to buffer overflow. The…
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High 8.8
Totolink N300RH POST Request cstecgi.cgi setUpgradeFW buffer overflow
A weakness has been identified in Totolink N300RH 3.2.4-B20220812. Affected by this issue is the function setUpgradeFW of the file /cgi-bin/cstecgi.cgi of the component POST Request Handler. Executing a manipulation of the argument FileName can lead to buffer…
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High 7.3
osrg GoBGP AIGP Attribute bgp.go PathAttributeAigp.DecodeFromBytes buffer overflow
A vulnerability was found in osrg GoBGP up to 4.3.0. Affected is the function PathAttributeAigp.DecodeFromBytes of the file pkg/packet/bgp/bgp.go of the component AIGP Attribute Parser. Performing a manipulation results in buffer overflow. It is possible to i…
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High 8.8
Totolink WA300 POST Request cstecgi.cgi UploadCustomModule buffer overflow
A vulnerability was determined in Totolink WA300 5.2cu.7112_B20190227. This issue affects the function UploadCustomModule of the file /cgi-bin/cstecgi.cgi of the component POST Request Handler. Executing a manipulation of the argument File can lead to buffer …
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High 8.8
Edimax BR-6208AC setWAN buffer overflow
A vulnerability was detected in Edimax BR-6208AC up to 1.02. Affected is an unknown function of the file /goform/setWAN. Performing a manipulation of the argument pptpDfGateway results in buffer overflow. The attack may be initiated remotely. The exploit is …
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High 8.8
Edimax BR-6428nC setWAN buffer overflow
A security vulnerability has been detected in Edimax BR-6428nC up to 1.16. This impacts an unknown function of the file /goform/setWAN. Such manipulation of the argument pptpDfGateway leads to buffer overflow. The attack can be launched remotely. The exploit…
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High 8.8
Shenzhen Libituo Technology LBT-T300-HW1 apply.cgi start_lan buffer overflow
A vulnerability has been found in Shenzhen Libituo Technology LBT-T300-HW1 up to 1.2.8. Impacted is the function start_lan of the file /apply.cgi. The manipulation of the argument Channel/ApCliSsid leads to buffer overflow. The attack is possible to be carrie…
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High 8.8
Shenzhen Libituo Technology LBT-T300-HW1 Web Management start_single_service buffer overflow
A flaw has been found in Shenzhen Libituo Technology LBT-T300-HW1 up to 1.2.8. This issue affects the function start_single_service of the component Web Management Interface. Executing a manipulation of the argument vpn_pptp_server/vpn_l2tp_server can lead to…
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High 7.3
MikroTik RouterOS SCEP Endpoint scep.p ASN1_STRING_data out-of-bounds
A vulnerability was identified in MikroTik RouterOS 6.49.8. This vulnerability affects the function ASN1_STRING_data in the library nova/lib/www/scep.p of the component SCEP Endpoint. The manipulation of the argument transactionID/messageType leads to out-of-…
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High 8.8
TRENDnet TEW-821DAP Firmware Udpate auto_update_firmware buffer overflow
A security vulnerability has been detected in TRENDnet TEW-821DAP 1.12B01. Impacted is the function auto_update_firmware of the component Firmware Udpate. The manipulation of the argument str leads to buffer overflow. The attack may be initiated remotely. The…